Bimmerfest - BMW Forums - View Single Post - A couple of battery questions
View Single Post
Old 10-16-2012, 10:02 AM
avoiceoreason avoiceoreason is offline
Registered User
Location: PA
Join Date: May 2010
Posts: 64
Mein Auto: '07 650i convertible
Originally Posted by Yorgi View Post
Great choice on the charger, I think it's the best one available on the market. I have the same model.

The BMW TIS (online workshop manual) mentions to never go over 12.8 volts when charging the AGM battery or you will quickly destroy the battery.

The difference between "normal mode" and "snowflake mode" on the CTEK is a charging voltage of 12.4V vs 12.7V. I think 12.7V is pushing it close to the limit so I would stick to normal mode to be safe.
Thanks Yorgi. Your help and knowledge are always appreciated.
Reply With Quote